Research Article

Investigation of Nonlinear Pupil Dynamics by Recurrence Quantification Analysis

Figure 2

Example of processing of a pupil size time series recorded from a subject in stationary conditions. Normalized data are shown in (a). The extraction of some linear and nonlinear indexes is shown in (b) and (c), respectively (each point in (c) indicates a recurrence).
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(a)
420509.fig.002b
(b)
420509.fig.002c
(c)